PVV – Presentation PDF: Photo Voltaic Installations Safety/Quality

PVV: Photo Voltaic Installations Safety/Quality (ADK: D-5/712) – Presentation PDF on 30 + pages Evaluating safety and quality of the photo-voltaic systems. The parameters of the panels and the strings, quality and degradation parameters, measuring methods assuring of the safety conditions and protection against electrical shock.

Material language: English.

Descriere

Practical Knowledge with Measuring Methods and Procedures

Inspections, Tests & Measurements

Type of Voltage System
Type of Earthing system
Visual Inspection
Fault Conditions and permissible touch voltage evaluation:
Line to ground case situations
RCD protection type B
Automatic trip-out evaluation
- Short-Circuit Currents
- Fuse characteristics evaluation
Continuity and Equalization Testing
Earthing and Grounding Measuring Methods:
- Earth Resistance Measurement 2/3/4 wire test method
- Ground loops testing with 2 clamps method
SPD protection testing
Insulation Resistance Measurement
Leakage current testing
Basic parameters evaluation
- Isc short circuit current
- Uop open loop voltage
- Insulation Roc +, Roc -, Rsc
STC measurement and quality evaluation
- Panel characteristic
- String characteristic
Invertor measurement
- MPP maximal power point tracker
- Power on DC string compared with AC output
- Efficiency on single 1f invertor

Evaluation of Results

Find the PASS / FAIL / LIMIT values
Compare results to the limit
Bring the decision

Act and Inform Appropriately

Report the results
Mark the equipment accordingly
Enabling of further use when PASS
Rejecting the usage when FAIL
Inform and transfer the responsibility

Troubleshooting and Maintenance

Work close to energized objects
Voltage presence Checking
Leakage Current AC or DC
Earth Bonding and Main protection evaluation
Find Faults and potential dangerous